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2 Journal of Telecommunications and Information Technology

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Quantifying the Suitability of Reference Signals for the Video Streaming Analysis for IPTV

Hoppe C., Manzke R., Rompf M., Uhl T.

Journal of Telecommunications and Information Technology

2016

nr 1

29--36

IP networks are indispensable nowadays and they are some of the most efficient platforms. The constantly growing number of users and new services in these networks – the largest being the Internet – require a satisfactory quality of service from any application they use. So, determining the QoS in real-time services is particularly important. This work shows how to quantify the suitability of reference signals for analyzing the quality of video streaming in IPTV. The assessment relies on two different algorithms: PEVQ and VQuad-HD. Three different reference signals – two real ones and an artificial one – are used in this study, and a numerical measurement system is used, which simulates mean network impairments. These measurements provide valuable information for determining the QoS of actual IPTV services in practice.

New Tool for Investigating QoS in the WWW Service

Uhl T., Rompf M.

Journal of Telecommunications and Information Technology

2015

nr 1

3--9

The subject of this paper is the QoS measurement in the World Wide Web (WWW) service. It will begin with a brief presentation of methods currently used to measure QoS in the WWW service before going on to describe in detail the new tool QoSCalc (WWW). Following that, the potential of the new tool will be put to the test in a series of analysis scenarios. The results and insights obtained will then be presented in several diagrams, and interpreted.